Great place to be in Bangkok. It's a modern and well-furnished studio with everything you need even for a long-term stay. The building itself is nice and secure, the area is quiet and the view from the window is amazing!
The gym is good enough and near the top of the building. You have a few 7/11 in the area. The communication with the host and her helpers was fantastic, they're all very helpful.
I would recommend staying here.